Sound-producing device,申请号US19250011416-传众专利搜索

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发明名称	Sound-producing device
摘要
申请公布号	US1774055(A)	申请公布日期	1930.08.26
申请号	US19250011416	申请日期	1925.02.25
申请人	GRUBMAN LEO J	发明人	GRUBMAN LEO J.
分类号	A63H5/00	主分类号	A63H5/00
代理机构		代理人
主权项
地址

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